Fly Cutting Pistons
Thread Starter
Launching!
Joined: Jun 2002
Posts: 221
Likes: 0
From: Orlando, FL
Fly Cutting Pistons How do you fly cut the pistons... i know there is a tool you use... where do you get it / rent it. Any tips? Clearance is close, and I dont wanna fug up my new heads.
On The Tree
Joined: Nov 2001
Posts: 164
Likes: 0
From: Gold Coast Australia
Re: Fly Cutting Pistons It all comes down to $
I would rather pull the motor and have it done properly (with the pistons out of the motor)
Have the piece of mind that it's done right and no contamination of metal filings to totaly stuff things up.
I would rather pull the motor and have it done properly (with the pistons out of the motor)
Have the piece of mind that it's done right and no contamination of metal filings to totaly stuff things up.
TECH Junkie
Joined: Dec 2001
Posts: 3,242
Likes: 0
From: Lakeland, FL
Re: Fly Cutting Pistons I'm pretty sure Isky sells/rents a tool. Try looking around on their website. I also think there was post awhile back that had the part # so a search may come up with somthing.
Launching!
Joined: Jun 2003
Posts: 233
Likes: 0
From: St. Louis, MO
Re: Fly Cutting Pistons The tool can be rented from Isky for about $30. I'm pretty sure thats how much it is. You pay full price for it and then they credit you the difference when you return it. If you buy the cutter and guide together they run $130. Its not that hard to do. You just have to take your time and measure everything twice. It took me a while to cut the first one but after doing a few, I breezed right through the rest. Total about 3-4 hours to do all 8.
Caution: Do not use a drill to turn the cutter. I used a 1/4" drive socket wrench and it only took about (50) 1/4 turn cranks to cut a .050" eyebrow in the piston. The cutter is carbide and cuts the piston like its butter. The shavings are pretty big and can be sucked out easily with a shopvac.
Let me know if you have any questions.
Caution: Do not use a drill to turn the cutter. I used a 1/4" drive socket wrench and it only took about (50) 1/4 turn cranks to cut a .050" eyebrow in the piston. The cutter is carbide and cuts the piston like its butter. The shavings are pretty big and can be sucked out easily with a shopvac.
Let me know if you have any questions.
Thread Starter
Launching!
Joined: Jun 2002
Posts: 221
Likes: 0
From: Orlando, FL
Re: Fly Cutting Pistons
How about I set the timing for ya lol 
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FormerVendor
Joined: Nov 2001
Posts: 654
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From: Dallas/Wylie Texas
Re: Fly Cutting Pistons We have done about 30 of these fly cuts like Mike Burger did his. Feel free to call LG Motorsports if you have any questions or want the part number for the tool.
Thanks
Lou G LG Motorsports 972-272-7753
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TECH Addict
Joined: Jul 2002
Posts: 2,261
Likes: 0
Re: Fly Cutting Pistons We have done about 30 of these fly cuts like Mike Burger did his. Feel free to call LG Motorsports if you have any questions or want the part number for the tool.
Thanks
Lou G LG Motorsports 972-272-7753
Lou's a smart man. 
joel(Bink)
TECH Veteran
Joined: Aug 2002
Posts: 4,055
Likes: 1
From: Hartsdale, NY
Re: Fly Cutting Pistons DO NOT use the Isky tool without the special alignment cylander head.
The special head is machined to remove the valve seats so proper alignment of the cutting tool can occur.
The cutting tool is mounted in the head and lightly bolted to the block...the tool is then revolved by hand or with a drill.
This can be done easily in the car.
The head can be rented from a sponsor for cheap...
Do a search to find more information on renting the special head and cutting tool...
lots of descussion here about six months ago...
The special head is machined to remove the valve seats so proper alignment of the cutting tool can occur.
The cutting tool is mounted in the head and lightly bolted to the block...the tool is then revolved by hand or with a drill.
This can be done easily in the car.
The head can be rented from a sponsor for cheap...
Do a search to find more information on renting the special head and cutting tool...
lots of descussion here about six months ago...
TECH Apprentice
Joined: Jan 2002
Posts: 320
Likes: 5
From: Nottingham, Notts, England, UK
Re: Fly Cutting Pistons Interesting post Robert. Can you tell more about the need for removal of the valve seat as I'm missing something here. Won't the guide align the cutter or has the tool got a bigger diameter fixture to the head to make it more stable? Thanks.
Re: Fly Cutting Pistons
Interesting post Robert. Can you tell more about the need for removal of the valve seat as I'm missing something here. Won't the guide align the cutter or has the tool got a bigger diameter fixture to the head to make it more stable? Thanks.
Launching!
Joined: Jun 2003
Posts: 233
Likes: 0
From: St. Louis, MO
Re: Fly Cutting Pistons
Interesting post Robert. Can you tell more about the need for removal of the valve seat as I'm missing something here. Won't the guide align the cutter or has the tool got a bigger diameter fixture to the head to make it more stable? Thanks.
NOTE: I DO NOT agree with using a drill to turn the cutter. They cut really fast and if you go too deep you're screwed! Do it by hand, it only takes a few minutes to make the actual cut, the rest of the time is measuring and doublechecking everything.
Another option is to take one of your heads to a machine shop and have the seats removed. It shouldn't cost much.
